CN1229882C - Battery and its manufacturing method - Google Patents
Battery and its manufacturing method Download PDFInfo
- Publication number
- CN1229882C CN1229882C CNB011100958A CN01110095A CN1229882C CN 1229882 C CN1229882 C CN 1229882C CN B011100958 A CNB011100958 A CN B011100958A CN 01110095 A CN01110095 A CN 01110095A CN 1229882 C CN1229882 C CN 1229882C
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- China
- Prior art keywords
- monocell
- protuberance
- link
- shell
- opposing party
- Prior art date
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Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000003792 electrolyte Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 104
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 238000009413 insulation Methods 0.000 description 18
- 229910052759 nickel Inorganic materials 0.000 description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 8
- 238000009740 moulding (composite fabrication) Methods 0.000 description 8
- 229910000967 As alloy Inorganic materials 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010013647 Drowning Diseases 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910000652 nickel hydride Inorganic materials 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
- H01M50/51—Connection only in series
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/49114—Electric battery cell making including adhesively bonding
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery pack comprised by connection of a plurality of single batteries which includes a metallic shell for accommodatint holding electrolyte and equipped with a main battery accessory constructed by anode and cathode and having a terminal end of a square electrode, and a terminal end of another square electrode which is insulated to the metallic shell. The battery pack is characterized in that: between two adjacent terminals of the single battery, connection members with a projection are set at one side or more of each terminal, and the connection members and the connection part of the single battery terminal are connected by jointing at the projection part.
Description
Technical field
The electrode group that the present invention relates to make anodal and negative pole lamination by barrier film and electrolyte seal up for safekeeping a plurality of monocells in the metal-back that has side's electrode terminal concurrently through the battery pack that being welded to connect with and manufacture method.
Background technology
In general, alkaline batterys such as nickel-hydride accumulator, ni-cd storage battery, be between positive pole and negative pole, barrier film to be arranged, after being wound into scroll, connect collector body and form electrode body in the end of negative or positive electrode, then with in this electrode body income metal battery box and will be welded on by the wire portion that collector body extends after the seal body, seal body is installed in the peristome of battery case by insulation spacer and constitutes by sealing.When being used for purposes such as electric tool or electric automobile at this alkaline battery, because demanding power output, so use the battery pack that a plurality of monocells are connected in series usually.
Such battery pack, as shown in figure 15, on the positive plate lid 82 that is provided with as positive terminal on the hush panel 81 of monocell 80b, one end of welding lead plate 85, while is on the bottom 84 of the metal shell 83 of monocell 80a, the other end of welding lead plate 85 bends to the U font by the central portion with wire guide plate 85 then, a plurality of monocell 80a and 80b are connected in series and make.
But, when a plurality of monocell 80a, the 80b discharge that the wire guide plate 85 that makes by bending to the U number of words connects because discharging current feeds by wire guide plate 85, so or wire guide plate 85 is longer, wire guide plate 85 is thinner, then the resistance drops is bigger.In this resistance drops, discharging current hour, is that all right is problem, if being used for electric tool or electric automobile etc. when big electric current feeds purposes, because the resistance drops produces the problem of operating voltage decline.
Therefore, people consider also to propose, and do not use wire guide plate, and with monocell relatively to terminal between fetch the method that connects monocell with soldering, but the little and problem that is difficult to connect reliably of the intensity with soldering portion is compared in soldering with welding.In addition, also have the soldering monocell relatively to electrode between the problem of pretty troublesome and operating efficiency difference.
Therefore, the applicant has carried out various researchs, and its result has developed and made welding current flow to battery charge direction or course of discharge and can directly weld brand-new method between the contiguous terminal of monocell.This method as shown in figure 16, a plurality of monocell 90a, 90b are put into not shown carrying cylinder being arranged in after the row, one side's welding electrode 96 is set on the monocell positive cover 92 in the top, the opposing party's welding electrode 97 is set in the bottom 94 of the metal shell 93 of the monocell of lower end.
After this, limit plus-pressure limit making alive and feed heavy current pulse between two welding electrodes 96,97.Thus, the bottom 94 of the metal shell 93 of monocell 90a is soldered with the contact site generation fusion of the positive cover 92 of monocell 90b.
Like this, because directly welding between the terminal of monocell vicinity, so the resistance drops of this welding portion has reduced and has improved the operating voltage of battery pack.
Yet, as previously mentioned, make a plurality of monocells be arranged in one row after, at its both ends a pair of welding electrode is set, the limit is to two welding electrode plus-pressure limit applied voltages and feed heavy current pulse, when the contact site welding of the bottom of the metal shell of side's monocell and the opposing party's monocell positive cover, then when plus-pressure between welding electrode, directly give positive cover with excessive plus-pressure.When positive cover is subjected to this excessive plus-pressure, problems such as positive cover is compressed, distortion.
In addition, owing in positive cover, be provided with pressure valve, therefore be compressed and when deforming, just produced the problem that this pressure valve can't operate as normal in positive cover.
Summary of the invention
Therefore, the present invention proposes for addressing the above problem, and its purpose is, even provide a kind of with a plurality of monocells welding, also without detriment to the cap of interior dress pressure valve and do not produce the battery pack of the structure of failure welding.
In order to achieve the above object, battery pack of the present invention, connecting into row by a plurality of monocells forms, these monocells comprise containing establishes the anodal metal shell that wherein accompanies the battery important document of electrolyte with negative pole and have side's electrode terminal concurrently, constitute with seal body double as the opposing party electrode terminal of described metal shell insulated separation, it is characterized in that, in described monocell, has a junction spare between the bottom of the metallic casing of the seal body of adjacent side's monocell and the opposing party's monocell, described link at least respectively has a protuberance in two square ends, one side more in the inner part than the periphery of shell, described seal body has the outstanding lid that is arranged at its central portion, described link is on the position corresponding to described lid, have the peristome bigger than this lid diameter, the contact site of the opposing party's electrode terminal of described link and described side's monocell, and the contact site of the shell of described link and described the opposing party's monocell, be welded to connect at described protuberance respectively.
In ideal conditions, it is characterized in that described link is that the electric conducting material by the machine-shaping of a slice metallic plate constitutes, described protuberance is the pin that forms in the machine-shaping.
The invention is characterized in that described link has peristome in the central portion zone corresponding to described seal body and forms in the mode of surrounding described peristome, is desirable.
The invention is characterized in that described link constitutes: being welded to connect at described outer casing bottom and described shell, reaching an one of side and cover an one of described side along described outer peripheral edge portion, is desirable.
The invention is characterized in that described link reaches one one of the side and in described shell side along the circumference of described shell, is welded to connect with described shell.
That is to say, battery pack of the present invention is between the outer casing bottom of the seal body of side's monocell and the opposing party's monocell, on the position corresponding, be provided with and have than this big peristome link in lid footpath with lid, and the contact site of the seal body of this link and a side's monocell, and the contact site of the shell of this link and the opposing party's monocell is welded to connect respectively.
Like this, when the contact site of link and side's monocell seal body and link and the contact site of the outer casing bottom of the opposing party's monocell promptly become the respectively soldered structure that is connected, seal body by link one side's monocell is electrically connected with the outer casing bottom of the opposing party's monocell, and become the height of link once the collector body path of the outer casing bottom of the seal body of square monocell and the opposing party's monocell, promptly, become the length between the outer casing bottom of the seal body of side's monocell and the opposing party's monocell, therefore, can obtain reducing the resistance drops of connection, improve the battery pack of operating voltage.
In addition, the ratio lid that is provided with on the set position corresponding with lid on by seal body is the link of big peristome directly, when the seal body of one side's monocell is electrically connected with the outer casing bottom of the opposing party's monocell, being arranged on drowning on the seal body has solderedly, is not compressed and deforms and damage so do not produce lid.Thus, can obtain covering interior set safety valve work and press impregnable battery pack.
So, link constitutes by having conductive material, include its external diameter and upward or the outstanding mutually protuberance that the end is arranged in below by this baseplate part portion than the circular base board of described shell aperture portion internal diameter path, and by the outstanding protuberance in the bottom of this protuberance, like this, by by baseplate part upward or the outstanding mutually protuberance that the end is arranged in below, annular link can give elasticity between the outer casing bottom of the seal body of side's monocell and the opposing party's monocell.
Therefore, (or upward) the downwards outstanding protuberance and the weld part of side's monocell seal body can be improved, and the weld strength of the weld part of the outer casing bottom of (or downwards) outstanding protuberance and the opposing party's monocell upward, further reduce the higher battery pack of weld part resistance drops and operating voltage.In such cases, the external diameter of annular base plate is because littler than shell aperture portion internal diameter, produces the battery pack of bad welding so can obtain preventing the upper end of the shell of side's monocell from contacting with the outer casing bottom of the opposing party's monocell.
In addition, if an one of circular base board has notch, then after each monocell being arranged in a row configuration, can between each monocell, insert link, so the alignment arrangements operation of each monocell has become easily.And the shape of substrate is not limited to annular, also can be polygonal.Also have, link bends to arc or zigzag the 1st baseplate part by the periphery along shell aperture portion, the 2nd baseplate part that bends to arc or crooked shape with periphery along shell aperture portion constitutes, be at interval the 1st baseplate part and the 2nd baseplate part to be separated from each other configuration and its central part when forming peristome with the lid, the operation of insertion link promptly becomes and has been more prone between each monocell.
So when the battery pack that constitutes using such connecting portion was destroyed with fracture owing to weld part takes place certain accident, if the thickness of protuberance is thicker than the thickness of outer casing bottom, the welding portion that then might produce outer casing bottom broke and electrolyte leakage.For this reason, preferably make the thickness of protuberance and the bottom thickness of protuberance do thinly than outer casing bottom thickness.In addition, if the thickness of baseplate part is done than the thin thickness of outer casing bottom, the resistance value that then produces link rises, and therefore the problem that the output characteristic of battery pack descends is preferably done the thickness of substrate thicker than the thickness of outer casing bottom.
Also have, the annular link is more integrally formed than shell aperture portion internal diameter path annular insulating properties substrate and conducting ring by its external diameter, conducting ring in the substrate inside of substrate by this substrate upwards below during tab-like one-tenth, then pass through conducting ring, the seal body of one side's monocell is connected with the outer casing bottom of the opposing party's monocell, the current collection path becomes the height of conducting ring, the high battery pack of operating voltage so can obtain reducing connecting portion resistance drops.
In such cases, the external diameter of annular insulating properties substrate is also littler than shell aperture portion internal diameter, portion forms conducting ring within it, thereby can obtain preventing reliably that the shell upper end of side's monocell from contacting with the opposing party's monocell outer casing bottom, and then produces the battery pack of bad welding.
Also have, the annular link constitutes by having conductive material, have cylindrical portion and the annular flange portion that forms at the bottom integrated of this cylindrical portion, while is at the configuration dead ring of the peripheral part of cylindrical portion, flange part is welded on the seal body of the opposing party's monocell, when the upper end of cylindrical portion is welded on the bottom of shell of the opposing party's monocell, because the current collection path becomes the height of cylindrical portion, the high battery pack of operating voltage so can obtain reducing the resistance drops of connecting portion.
In this case, be provided with dead ring at the peripheral part of cylindrical portion, thus can obtain preventing reliably contacting of side's monocell shell upper end and the opposing party's monocell outer casing bottom, and then do not produce the battery pack of failure welding.
Also have, annular link and seal body are whole to be formed, have with the cylinder that is formed centrally by outstanding the covering of seal body, simultaneously on the peripheral part of this cylinder, dispose dead ring, the bottom of cylinder is welded on the seal body of side's monocell, and the upper end of cylinder is when being welded on the outer casing bottom of the opposing party's monocell, because the current collection path is the height of cylinder, and the high battery pack of operating voltage so can obtain reducing the resistance drops of connecting portion.
In this case, be provided with dead ring, therefore can obtain to prevent reliably that the shell upper end of side's monocell from contacting with the opposing party's monocell outer casing bottom, and then produce the battery pack of bad welding at the peripheral part of cylindrical portion.
So the manufacture method of battery pack of the present invention is to comprise: prepare a plurality of monocell operations and a plurality of monocells are arranged in an operation and a welding sequence that is listed as; The a plurality of monocell operations of described preparation, be to prepare to accommodate the battery key element of the positive pole of seizing electrolyte on both sides by the arms and negative pole formation and have the metal shell of side's electrode terminal concurrently and to a plurality of monocells of the seal body that has the opposing party's electrode terminal concurrently of described metal shell insulated separation; The described operation that is arranged in row, be between the bottom with the metal shell of the seal body of side's monocell adjacent in the described monocell and the opposing party's monocell, by at least respectively have the link contact of a protuberance more in the inner part in two square ends, one side than the periphery of shell; Described welding sequence, be to feed welding current in the described at least one side's of a plurality of monocells who forms a line the battery key element and to be welded between the described adjacent terminal, described seal body has the outstanding lid that is arranged at its central portion, described link is on the position corresponding to described lid, have the peristome bigger than this lid diameter, the contact site of the opposing party's electrode terminal of described link and described side's monocell, and the contact site of the shell of described link and described the opposing party's monocell, be welded to connect at described protuberance respectively.
Like this, the link of the peristome that the diameter that will be had on the position corresponding with lid is bigger than lid is made arranged spaced, a plurality of monocells are formed a line, pressurizeed with setting pressure in these both ends then, when between a pair of welding electrode of any two monocell metal shells contact configuration, feeding welding current simultaneously, welding current is fed to the opposing party of a pair of welding electrode or to its rightabout in outer casing bottom, link, the opposing party's monocell lid and the opposing party's monocell by side's monocell by a side of a pair of welding electrode.
Thus, at the outer casing bottom of side's monocell and the contact site of link, and the contact site generation Joule heat of the lid of the opposing party's monocell and link, these contact site fusions and soldered.Its result, even do not use welding positive wire plate, the outer casing bottom of one side's monocell and the opposing party's monocell lid is soldered the connection by link, thereby can obtain reducing the resistance drops of contact site, makes the battery pack of the low internal resistance that a plurality of monocells are connected in series.
And, the occasion that above-mentioned formation also is connected in parallel applicable to monocell.
Description of drawings
Below accompanying drawing is done simple declaration.
Fig. 1 is the figure of expression embodiment 1 link, and Fig. 1 (a) is its perspective view, and Fig. 1 (b) is its vertical view, and Fig. 1 (c) is its front view.
Fig. 2 uses the link of embodiment 1 for expression and connects the cutaway view of state between single electrode.
Fig. 3 is the figure of expression embodiment 2 links, and Fig. 3 (a) is its perspective view, and Fig. 3 (b) is its vertical view, and Fig. 3 (c) is its front view.
Fig. 4 is the figure of expression embodiment 3 links, and Fig. 4 (a) is its perspective view, and Fig. 4 (b) is its vertical view, and Fig. 4 (c) is its front view.
Fig. 5 is the figure of expression embodiment 4 links, and Fig. 5 (a) is its perspective view, and Fig. 5 (b) is its vertical view, and Fig. 5 (c) is its front view.
Fig. 6 is the perspective view of analog representation welder one example of the present invention.
Fig. 7 is the vertical view of state between the monocell of the device welding battery pack of expression use Fig. 6.
The cutaway view that Fig. 8 amplifies the major part of link and monocell shell welding portion for the thickness and the monocell outer casing thickness relation of expression link of the present invention.
Fig. 9 uses the link of variation 1 for expression and connects the cutaway view of state between monocell.
Figure 10 uses the link of variation 2 for expression and connects the cutaway view of state between monocell.
Figure 11 uses the link of variation 3 for expression and connects the cutaway view of state between monocell.
Figure 12 is the link of representing variation 4 and the figure that uses state between this parts connection monocell.
Figure 13 is the link of representing variation 5 and the figure that uses state between this parts connection monocell.
Figure 14 is the link of representing variation 6 and the figure that uses state between this parts connection monocell.
Figure 15 is the front view of existing routine battery pack one example of expression.
Figure 16 is existing another the routine front view of routine battery pack of expression.
In above-mentioned accompanying drawing, A, B, the C-monocell, 1-positive plate, 2-negative plate, the 3-barrier film, 4-positive electrode collector, the anodal lead of using of 5-, 6-shell (negative plate outside terminal), 7-seal body, 8-positive cover (anodal outside terminal), the 9-insulation spacer, 10,20,50,60,70-annular link, 11,21-circular base board, 12,22,42,45-has the protuberance at the end, 13,23,33,43, the 46-protuberance, 14,24,34,53,-perforate, 25, the 35-notch, 30-polygonal link, 31-polygonal baseplate part, 40-link, 41-the 1st baseplate part, 44-the 2nd baseplate part, 51-conducting ring, 52-annular insulating properties substrate, the 61-cylinder, 62, the 72-flange part, 63, the 73-dead ring, the 71-cylinder, 101, electrode is used in the 103-welding, 101a, 102a, 103a, the 104a-slot part, 102, the 104-welding lower electrode, 105, the 106-mounting table that insulate, 107, the 108-pressure-producing part, 110 welding power supplys.
Embodiment
Embodiment
The following embodiment that the present invention is applicable to nickel-hydrogen accumulator according to Fig. 1 to Fig. 8 explanation.Wherein, Fig. 1 is the figure of expression embodiment 1 link, and Fig. 1 (a) is its perspective view, and Fig. 1 (b) is its vertical view, and Fig. 1 (c) is its front view.Fig. 2 connects the cutaway view of state between monocell with the link of embodiment 1 for expression.Wherein the link of Fig. 2 illustrates the X-X cross section of Fig. 1 (b).In addition, Fig. 3 is the figure of the link of expression embodiment 2, and Fig. 3 (a) is its perspective view, and Fig. 3 (b) is its vertical view, and Fig. 3 (c) is its front view.
Fig. 4 is the figure of expression embodiment 3 links, and Fig. 4 (a) is its perspective view, and Fig. 4 (b) is its vertical view, and Fig. 4 (c) is its front view.Fig. 5 is the figure of expression with the link of embodiment 4, and Fig. 5 (a) is its perspective view, and Fig. 5 (b) is its vertical view, and Fig. 5 (c) is its front view.In addition, Fig. 6 is the perspective view of simulation ground expression welder one example of the present invention.Fig. 7 is the vertical view of welded condition between the monocell of expression use Fig. 6 device welding battery pack.Also have, Fig. 8 is the thickness and the cutaway view of monocell outer casing thickness relation with link and the amplification of monocell shell welding portion major part of expression link of the present invention.
1. the making of monocell
At first, after on the pole plate core surface of making by the punch metal plate, forming the nickel sintered porous bodies, to be filled into making nickel positive electrode plate 1 in this nickel sintered porous bodies based on the active material of nickel hydroxide by method of chemical immersion, after simultaneously on surface, filling the pasty state negative electrode active material of forming by hydrogen adsorbing alloy and make its drying by the pole plate core body of punch metal system, it is rolled to given thickness, make hydrogen adsorbing alloy negative electrode plate 2.
Between these nickel positive electrode plates 1 and hydrogen adsorbing alloy negative pole 2, be wound into the helical type and make scroll electrode group by barrier film 3, welding positive electrode collector 4 on the pole plate core body that exposes in the upper surface of this scroll electrode group exposes in its lower surface simultaneously and welds negative electrode collector (not shown) on the pole plate core body then.Then, in the welding of the top of positive electrode collector 4, the central portion bending machining is become columnar anodal with after the lead 5, it is received into having in the bottomless drum shape shell (outside of bottom surface becomes negative outer terminal) 6 of nickel plating on the iron, and will be welded on the inner bottom surface that negative electrode collector on the hydrogen adsorbing alloy negative plate 2 is welded on shell 6.
Then, with all sides in the top of trembleuse cup (not shown) insertion shell 6, carry out groove processing and form recess in the upper periphery side of shell 6, in shell 6, inject the electrolyte of forming then by potassium hydroxide (KOH) aqueous solution of 30% (weight) in the trembleuse cup upper end.After this, in the bottom surface of the peristome top of this shell 6 configuration hush panel 7, make it to contact with anodal cylindrical portions may with lead 5.
Here, be provided with positive cover (anodal outside terminal) 8 on hush panel 7 tops, in this positive plate lid 8, have the valve body that constitutes by valve plate 7a and spring 7b, be formed with air vent hole, and seal body covers 8 by hush panel 7 with positive plate and forms in the central authorities of seal body 7.
Then, insulation spacer 9 in the periphery embedding of seal body 7, and the working pressure machine exerts pressure, seal body 7 is pressed in the shell 6, the lower end that reaches insulation spacer 9 is arranged on till the recess location on shell 6 upper periphery.After this, be riveted on interior side and, promptly obtain nickel-hydrogen accumulator A, B, C by opening ora terminalis battery seal with shell 6.
2. link between monocell
(1) embodiment 1
(2) embodiment 2
In addition, the width of formed notch 25 forms slightly greatly with the diameter than positive cover 8 on baseplate part 21.Therefore, as described later, with each monocell A, therefore B after the C alignment arrangements, can carry out the alignment arrangements operation of each monocell at an easy rate inserting link 20 between monocell A and the B and between monocell B and the C.Also have, from front end by the protuberance 23 of the outstanding upward protuberance 22 of baseplate part 21, to by the length till the front end of the protuberance 23 of the outstanding downwards protuberance 22 of baseplate part 21, it forms: compare with the length between the seal body 7 of the bottom surface of the shell of battery A and battery B top, become longer slightly.
(3) embodiment 3
What in addition, the width of formed notch 35 formed slightly greatly with the diameter than positive cover 8 on baseplate part 31.Therefore, as described later, after with each monocell A, B, C alignment arrangements, can therefore carry out the alignment arrangements operation of each monocell at an easy rate inserting link 30 between monocell A and the B and between monocell B and the C.Also have, from front end by the protuberance 33 of the outstanding upward protuberance 32 of baseplate part 31, to by the length till the leading section of the protuberance 33 of the outstanding downwards protuberance 32 of baseplate part 31, it forms: compare with the length between the seal body 7 of the outer casing bottom of battery A and battery B top, become longer slightly.
(4) embodiment 4
Above-mentioned link also is included on the 1st baseplate part 41 by the 1st baseplate part 41 upward or the outstanding mutually protuberance that the end is arranged 42,42 in below ... with by the outstanding protuberance 43 in the bottom of this protuberance 42.In addition, also include on the 2nd baseplate part 44 by the 2nd baseplate part 44 upward or below the mutually outstanding protuberance that the end is arranged 45,45 ..., and from the outstanding protuberance 46 in the bottom of this protuberance 45.
In addition, link also comprises along shell aperture portion periphery and bends to zigzag the 1st baseplate part 41 and bend to the 2nd tortuous baseplate part 44 along the periphery of shell aperture portion; By positive cover 8 is done at interval, make the configuration of these the 1st baseplate parts 41 and the 2nd baseplate part 44 spaces, when central part forms peristome, then will carry out inserting the operation of the 1st baseplate part 41 and the 2nd baseplate part 42 more easily to each monocell A, B, C.
Also have, front end since the protuberance 43 (46) of the outstanding upward protuberance 42 (45) of the 1st baseplate part 41 (the 2nd baseplate part 44), to the length till the front end of the protuberance 43 (46) of the outstanding downwards protuberance 42 (45) of the 1st baseplate part 41 (the 2nd baseplate part 44), it forms: compare with the length between the seal body 7 of the bottom surface of the shell of battery A and battery B top, become longer slightly.
Also have, need not adopt along the periphery of shell aperture portion the 1st baseplate part 41 and the 2nd baseplate part 44 are bent to indentation, also can they be bent to arc sleekly along the peristome periphery of shell 6.
3. welder
Be used to make the welder of battery pack of the present invention, shown in Fig. 6,7, comprise: use side's polarity that electrode 101 and welding electrode form with bottom electrode 102 by welding and weld and use upper/lower electrode; Use electrode 103 by welding and weld a pair of welding electrode of forming with upper/lower electrode with the opposing party's polarity that welding lower electrode 104 is formed; The insulation mounting table of forming by the insulator that is configured between each welding lower electrode 102,104 105; The insulation mounting table of forming by the insulator that is configured in welding lower electrode 104 outsides 106; Be configured to each monocell A, B of the battery pack of row, a pair of pressure-producing part 107,108 of C both ends pressurization to being connected in series; Use the welding power supply 110 (with reference to Fig. 7) of electrode 101,103 or welding lower electrode 102,104 supply welding currents to welding.
Welding lower electrode the 102, the 104th is made polygonal cylindricality by conductivity good metal materials such as copper and is formed, and portion forms slot part 102a, the 104a consistent with the latter half outer shape of each monocell A, B, C along the monocell orientation respectively in the central.And welding to use electrode 101,103 identical with welding lower electrode 102,104, made corner post shape and formed by conductivity good metal materials such as copper, portion forms slot part 101a, the 103a of profile unanimity of the first half of each monocell A, B, C respectively along the monocell orientation in the central.
And, by each welding electrode 101,103 of mounting on each welding lower electrode 102,104, by the formed spatial portion of slot part 102a and 101a and consistent by the profile of slot part 104a and the formed spatial portion of 103a and each monocell A, B, C.Thus, use fixedly monocell A (B, C) of electrode 101 by preparation monocell A (B, C) on the slot part of welding lower electrode 102 and mounting welding thereon, by the fixing monocell B (A, C) of mounting welding electrode 103 thereon also of configuration monocell B (A, C) on the slot part 104a of welding lower electrode 104.
Insulation mounting table the 105, the 106th, by what nonconductive material prismaticallies such as synthetic resin and pottery were constituted, portion forms consistent slot part 105a, the 106a of profile with the latter half of monocell A, B, C respectively along the orientation of monocell respectively in the central.Also have, in Fig. 6,7, illustrated as monocell and used 3 monocell A, B, C to make battery pack and it is positioned in example on the insulation mounting table 105,106, but, when being manufactured with the battery pack that connects a plurality of monocells, except using insulation mounting table 105,106, also can use other insulation mounting table.
Pressure-producing part 107,108 is made of the metal with intensity, synthetic resin, pottery etc., each monocell A, B, C are arranged in a row configuration on each welding lower electrode 102,104 and the mounting table 105,106 that respectively insulate after, receive on the positive cover 8 of monocell A by pressure-producing part 107 is given as security, the bottom of simultaneously pressurised material being given as security the shell 6 of receiving monocell C pushes each monocell A, B, C.Also have, the pressing element that at least one square tube of pressure-producing part 107,108 is crossed helical spring and pneumatic cylinder etc. pressurizes.
Welding is a kind of DC power supply with power supply 110, after adding the direct voltage of given magnitude of voltage to battery pack, only at the about 15msec of dc pulse current of (use electrode 101 and welding use electrode 103 between in welding this moment) feeding 3KA between a pair of welding electrode.
Then explanation uses above-mentioned welder to make the welding example of battery pack.
At first, will become a row ground configuration according to the sequence arrangement of welding lower electrode 102, insulation mounting table 105, welding lower electrode 104 and insulation mounting table 106.After this, mounting monocell A on the slot part 102a of welding lower electrode 102; Mounting monocell B on the slot part 104a of insulation slot part 105a of mounting table 105 and welding lower electrode 104; Mounting monocell C on the slot part 106a of insulation mounting table 106.And, at this moment, at the arbitrary above-mentioned link 10,20,30,40 of configuration between monocell A and the B, between monocell B and the C.
Then, make welding use the slot part 101a of electrode 101 and the profile fit of monocell A, electrode 101 is used in welding to be positioned on the welding lower electrode 102, make welding use the slot part 103a of electrode 103 and the profile fit of monocell B simultaneously, electrode 103 is used in welding be positioned on the welding lower electrode 104, and fixedly monocell A and monocell B.
Then, pressure-producing part 107 is crimped onto on the hush panel 7 of monocell A, simultaneously pressure-producing part 108 is crimped onto the bottom of the shell 6 of monocell C.Like this, pressure-producing part 107 and at least one square tube of 108 are crossed pressue devices such as helical spring, pneumatic cylinder and are pressurizeed, with setting pressure (for example 1 * 10
5N/m
2-5 * 10
5N/m
2Pressure) to each monocell A, B, C pressurization.And, being connected welding by welding with square end of power supply 110 extended connection leads and using on the electrode 101, the opposing party's terminal then is connected to weld and uses on the electrode 103.
Then, when driving welding with power supply 110, then use electrode 101 and the current/voltage that adds given magnitude of voltage between the electrode 103 is used in welding in welding, use along welding in the contact site → monocell B of contact site → link 10 (20,30,40) and the hush panel 7 of monocell B of bottom and link 10 (20,30,40) of shell 6 → monocell A of electrode 101 → battery A → monocell B shell 6 → welding uses the direction (or it is against direction) of electrode 103, the about 15msec of feeding 3KA dc pulse current.
Like this, the contact site of the bottom of monocell A and link 10 (20,30,40), and connecting portion 10 (20,30,40) fusion with the contact site generation Joule heat of the hush panel 7 of monocell B, each contact site is soldered.
Then, sequence arrangement along insulation mounting table 106, welding lower electrode 102, insulation mounting table 105 and welding lower electrode 104 becomes a row ground configuration, mounting has monocell A and the monocell B that is welded on the slot part 106a of insulation mounting table 106 and welding lower electrode 102 slot part 102a, simultaneously mounting monocell C on the slot part 104a of welding lower electrode 104 and the mounting table 105 slot part 105a that insulate.After this, same as described above, electrode 101,103 is used in welding be positioned in respectively on the welding lower electrode 102,104, simultaneously with pressure-producing part 107 and pressure-producing part 108 crimping, drive welding power supply 110.Like this, the bottom of monocell B and link 10 (20,30,40) contact site and link 10 (20,30,40) weld respectively with the contact site of the hush panel 7 of monocell C, promptly become the welding battery pack of 3 monocell series connection.
Also have, when the contact site of the hush panel 7 of the bottom of monocell A (or B) and link 10,20,30,40 and monocell B (or C) welds respectively, in link 10, the protuberance 13 of Tu Chu protuberance 12 is soldered with the contact site of the bottom of the shell 6 of monocell A (B) upward; The protuberance 13 of Tu Chu protuberance 12 is soldered with the contact site of the hush panel 7 of monocell B (C) downwards.In addition, in link 20, the protuberance 23 of Tu Chu protuberance 22 is soldered with the contact site of the bottom of the shell 6 of monocell A (B) upward; The protuberance 23 of Tu Chu protuberance 22 is soldered with the contact site of the hush panel 7 of monocell B (C) downwards.
In addition, in link 30, the protuberance 33 of Tu Chu protuberance 32 is soldered with the contact site of the bottom of the shell 6 of monocell A (B) upward; The protuberance 33 of Tu Chu protuberance 32 is protruded with the contact site of the hush panel 7 of monocell B (C) downwards.Also have, in link 40, the protuberance 43 (46) of Tu Chu protuberance 42 (45) is soldered with the contact site of the bottom of monocell A (B) shell 6 upward; The protuberance 43 (46) of Tu Chu protuberance 42 (45) is soldered with the contact site of the mouth-sealed portion 7 of monocell B (C) downwards.
4. to the research of link thickness
The link 10,20,30,40 of stating embodiment in the use constitutes battery pack and when using this battery pack, meeting because of anything so the situation that weld part destroys disconnection takes place, if the thickness of each protuberance 13,23,33,43 (46) is thicker than the bottom thickness of the shell 6 of monocell A, B, C, then the bottom welding portion of shell 6 is destroyed, so-called electrolyte just may take place reveal.And if do the thickness of each substrate element 11,21,31,41 (45) thinner than shell 6 bottom thickness, the resistance value that then produces each link 10,20,30,40 rises, the problem that the output characteristic of battery pack descends.
Therefore, (link 10 only is shown among Fig. 8 as shown in Figure 8 among the present invention, but also be identical in the link 20,30,40), on the protuberance 12 of link 10 thickness t 1 of formed protuberance 13 than the thickness t of the bottom of protuberance 12 2 thin (t1≤t2), and the bottom thickness t2 of the thickness t 1 of protuberance and protuberance 12 than the bottom thickness t3 of shell 6 thin (t1≤t2's≤3t) form.Thick (t4 〉=t3), the relation that promptly has t1≤t2≤t3≤t4 forms and the thickness t 4 of baseplate part 11 is than the thickness t 3 of the bottom of shell 6.Like this, can obtain hanging down the resistance value that limit ground suppresses link 10 (20,30,40), the while is the battery pack of hurt monocell not.
5. the variation of link
Link between monocell of the present invention does not limit to the above embodiments, and various variation can be arranged.Following link according to Fig. 9-11 explanation variation of the present invention.Wherein, Fig. 9 connects the cutaway view of state between monocell for the link of expression use variation 1; Figure 10 uses the link of variation 2 for expression and connects the cutaway view of state between monocell; Figure 11 uses the link of variation 3 for expression and connects the cutaway view of state between monocell.
(1) variation 1
(2) variation 2
The monocell link 60 of variation 2, be by repressed shapings of conductivity good metal plate such as iron, copper, nickel or its alloys, as shown in figure 10, become the cylinder 61 with flange part 62, the internal diameter of cylinder 61 forms greatly with the external diameter than positive cover 8 simultaneously.Then, the peripheral part at this cylinder 61 has dead ring 63.Also have, the height height of the aspect ratio positive cover 8 of cylinder 61 is with more longer slightly and form than the length between the seal body 7 of the shell bottom surface of battery A and battery B top.
(3) variation 3
(4) variation 4
Link 80 between the monocell of variation 4, shown in Figure 12 A to D, are made of the lid of iron, copper, nickel or their conductivity good metal systems such as alloy.Machine-shaping by a slice metallic plate forms projection by pin, is easy to make.
(5) variation 5
Link 90 between the monocell of variation 5, and shown in Figure 13 A to B, the lid of being holed by iron, copper, nickel or their conductivity good metal system bands such as alloy constitutes.Also be by the machine-shaping of a slice metallic plate, form projection, be easy to make by pin.
(6) variation 6
Link 100 between the monocell of variation 6, shown in Figure 14 A to B, are to make the link 80 of variation 4 spin upside down usefulness.
Each link 50,60,70 that makes these variation is between each monocell, when using welder welding same as described above, in link 50, the contact site of the bottom of the shell 6 of the upper end of conducting ring 51 and monocell A (B) is soldered, and the contact site of the hush panel 7 of the bottom of conducting ring 51 and monocell B (C) is soldered.In addition, in connecting portion 60, the contact site of the bottom of the shell 6 of the upper end of cylinder 61 and monocell A (B) is soldered, and flange part 62 is soldered with the contact site of the seal body 7 of monocell B (C).
Also have, in link 70, the contact site of the bottom of the shell body 6 of the upper end of cylinder 71 and monocell A (B) is soldered.In addition, because the flange part 72 of link 70 is integrally formed with positive cover 8, so this flange part 72 is connected with the hush panel 7 of each monocell A, B, C in advance.
As mentioned above, among the present invention, be to be welded to connect between each monocell by in the link 10,20,30,40,50,60,70 any, therefore the current collection path of connecting portion only becomes the distance of the height of these links 10,20,30,40,50,60,70 between each monocell, so can obtain reducing connecting portion resistance drops and the high battery pack of operating voltage.
In addition, at the adjacent monocell of a plurality of monocells that is mixed with row, the metal shell 6 of monocell A and monocell B for example, make a pair of welding upper/lower electrode 101 on 6 respectively, 102 or 103, after the 104 contact configurations, utilize pressure-producing part 107,108 with the setting pressure pressurization one battery A that itemizes, B, the both ends of C, and use electrode 101 to a pair of welding, drive welding current between 103, therefore, welding current is used electrode 101 from welding, the bottom and the link 10 (20 of the shell 6 by monocell A (B), 30,40,50,60,70) contact site, link 10 (20,30,40,50,60,70) with the contact site and the monocell B (C) of the hush panel 7 of monocell B (C), use electrode 103 to welding, perhaps feed in the other direction to it.
Like this, at the contact site generation Joule heat of the hush panel 7 of the bottom of monocell A (or B) and link 10,20,30,40,50,60,70 and monocell B (or C), this contact site fusion and soldered.Like this, use wire guide plate, also can obtain reducing the decline that the resistance of weld part presses, the low battery pack of internal resistance of a plurality of monocells of series connection even need not weld.
Also have, in the above-described embodiment,, still,,, all can make battery pack even connect any monocell if be suitable for the present invention although understand the example of only making battery pack with 3 monocells.In such cases, when the monocell of a plurality of connections is made battery pack, except that using seal platform 105,106, also can use other insulation mounting tables, mainly be, weld the formation that to insulate between a pair of welding electrode between adjoining monocell, get final product.
Also have, in the above-described embodiments, although understand the example that the electric current of the time feeding 3KA of an about 15mese welds, but with regard to applying current value, irrelevant with battery size, more than 1KA, also can obtain effect same.Also have,, then can obtain effect same, but feed electric current, then can produce harmful effect, thereby be unfavorable each monocell through long-time (for example more than 1 second) if application time is more than the 5msec.Also have, the power supply as welding current is not limited only to direct current, also can use AC power.
Also have, the above-mentioned explanation with the seal body is positive terminal, with the example of shell, still, also can use to be negative terminal with seal body as negative terminal, with shell as positive terminal.
Also have, the above-mentioned example that the present invention is applicable to nickel-hydrogen accumulator that illustrated, still, the present invention is not limited only to nickel-hydrogen accumulator, obviously, also applicable to other storage batterys such as cadmium-nickel storage cells.
Claims (13)
1. battery pack, connecting into row by a plurality of monocells forms, these monocells comprise containing seizes electrolyte on both sides by the arms, is provided with battery important document that anodal and negative pole constitute and the metal shell that has side's electrode terminal concurrently, constitute with seal body described metal shell insulated separation double as the opposing party electrode terminal, it is characterized in that
Have a junction spare between the bottom of the metallic casing of the seal body of adjacent side's monocell and the opposing party's monocell in described monocell, described link at least respectively has a protuberance in two square ends, one side more in the inner part than the periphery of shell,
Described seal body has the outstanding lid that is arranged at its central portion,
Described link has the peristome bigger than this lid diameter on the position corresponding to described lid,
The contact site of the opposing party's electrode terminal of described link and described side's monocell, and the contact site of the shell of described link and described the opposing party's monocell are welded to connect at described protuberance respectively.
2, battery pack according to claim 1 is characterized in that, described link is that the electric conducting material by the machine-shaping of a slice metallic plate constitutes, and described protuberance is the pin that forms in the machine-shaping.
3. battery pack according to claim 1 is characterized in that, described link has peristome in the zone corresponding to the central portion of described seal body and forms in the mode of surrounding described peristome.
4. battery pack according to claim 1, it is characterized in that, described link constitutes by having conductive material, include its external diameter and upward or the alternately outstanding protuberance that the end is arranged in below by this baseplate part than described shell aperture portion's internal diameter circlet shape baseplate part, and by the outstanding protuberance in the bottom of this protuberance
Be welded to connect the protuberance of the outstanding described protuberance of an oriented direction and the contact site of described side's monocell seal body simultaneously, and be welded to connect the protuberance of the outstanding described protuberance of oriented other direction and the contact site of described the opposing party's monocell outer casing bottom.
5. battery pack according to claim 1, it is characterized in that, described link constitutes by having conductive material, it is littler and form the circular base board of notch part and by this baseplate part upward or the alternately outstanding protuberance that the end is arranged in below thereon than described shell aperture portion internal diameter to include its external diameter, and by the outstanding protuberance in the bottom of this protuberance
Be welded to connect the protuberance and the contact site of described side's monocell seal body of the outstanding described protuberance of an oriented direction simultaneously, and be welded to connect the contact site of the outer casing bottom of the protuberance of the described protuberance that oriented other direction gives prominence to and described the opposing party's monocell.
6. battery pack according to claim 1, it is characterized in that, described link constitutes by having conductive material, it is littler and form the polygonal baseplate part of notch part and by this baseplate part upward or the alternately outstanding protuberance that the end is arranged in below thereon than described shell aperture portion internal diameter to include its external diameter, and by the outstanding protuberance in the bottom of this protuberance
Be welded to connect the protuberance and the contact site of described side's monocell seal body of the outstanding described protuberance of an oriented direction simultaneously, and be welded to connect the contact site of the outer casing bottom of the protuberance of the described protuberance that oriented other direction gives prominence to and described the opposing party's monocell.
7. battery pack according to claim 1, it is characterized in that, described link constitutes by having conductive material, includes along described shell aperture portion periphery to bend to arc or zigzag the 1st baseplate part and bend to arc or zigzag the 2nd baseplate part along the periphery of described shell aperture portion; These the 1st baseplate parts and the 2nd baseplate part make described lid at interval, leave setting mutually, its central part forms peristome, simultaneously these the 1st baseplate parts and the protuberance that the end is arranged that the 2nd baseplate part includes respectively upward or alternately give prominence to downwards, and by the outstanding protuberance in the bottom of this protuberance
Be welded to connect the protuberance and the contact site of a described monocell seal body of the outstanding described protuberance of an oriented direction simultaneously, and be welded to connect the contact site of the protuberance of the described protuberance that oriented other direction gives prominence to and described the opposing party's monocell outer casing bottom.
8. battery pack according to claim 6 is characterized in that, the thickness of the thickness of described protuberance and described protuberance bottom forms the thin thickness than described outer casing bottom, and described baseplate part thickness is thicker than the thickness of described outer casing bottom simultaneously.
9. battery pack according to claim 1 is characterized in that, described link is to be formed than described shell aperture portion's internal diameter circlet shape insulated substrate and conducting ring integral body by its external diameter,
Described conducting ring is tab-like one-tenth below described insulated substrate inside is made progress by this insulated substrate,
Described conducting ring bottom is welded on the seal body of described side's monocell simultaneously, and this conducting ring upper end is welded on the outer casing bottom of described the opposing party's monocell.
10. battery pack according to claim 1 is characterized in that described link is made of the cylinder with conductivity flange part,
Simultaneously at described cylinder peripheral part dead ring is set, described flange part is welded on the seal body of described side's monocell, and the upper end of described cylinder is welded on the bottom of described the opposing party's monocell shell.
11. battery pack according to claim 1 is characterized in that, described link and described lid are whole to be formed, at the described cylinder that has with being formed centrally that covers,
Peripheral part at described cylinder is provided with dead ring simultaneously, and the bottom of described cylinder is welded on the seal body of described side's monocell, and the upper end of this cylinder is welded on the bottom of described the opposing party's monocell shell.
12. the manufacture method of a battery pack is characterized in that: comprising: prepare a plurality of monocell operations and a plurality of monocells are arranged in an operation and a welding sequence that is listed as; The a plurality of monocell operations of described preparation, be to prepare to accommodate the battery key element of the positive pole of seizing electrolyte on both sides by the arms and negative pole formation and have the metal shell of side's electrode terminal concurrently and to a plurality of monocells of the seal body that has the opposing party's electrode terminal concurrently of described metal shell insulated separation; The described operation that is arranged in row, be between the bottom with the metal shell of the seal body of side's monocell adjacent in the described monocell and the opposing party's monocell, by at least respectively have the link contact of a protuberance more in the inner part in two square ends, one side than the periphery of shell; Described welding sequence, be to feed welding current in the described at least one side's of a plurality of monocells who forms a line the battery key element and to be welded between the described adjacent terminal, described seal body has the outstanding lid that is arranged at its central portion, described link is on the position corresponding to described lid, have the peristome bigger than this lid diameter, the contact site of the opposing party's electrode terminal of described link and described side's monocell, and the contact site of the shell of described link and described the opposing party's monocell, be welded to connect at described protuberance respectively.
13. the manufacture method of battery pack according to claim 12, be to pass through insulator in the shell aperture portion that has side's electrode terminal concurrently of having accommodated cell device, form the manufacture method of battery pack with a plurality of monocells series connection of seal body with double as the opposing party electrode terminal lid, it is characterized in that
Between the seal body of side's monocell and the opposing party's monocell outer casing bottom link is set, described link has the peristome bigger than this lid diameter on the position corresponding with described lid, with described a plurality of monocells be arranged in one be listed as after,
Pressurizeed with setting pressure in the described both ends that have been arranged in a plurality of monocells of row, feed welding current to contacting with any two monocell metal shells between a pair of welding electrode that is provided with simultaneously,
The seal body of described link and described side's monocell and the outer casing bottom of described link and described the opposing party's monocell are welded respectively.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000094918 | 2000-03-30 | ||
| JP094918/2000 | 2000-03-30 | ||
| JP273647/2000 | 2000-09-08 | ||
| JP2000273647A JP3723433B2 (en) | 2000-03-30 | 2000-09-08 | Battery pack and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1315748A CN1315748A (en) | 2001-10-03 |
| CN1229882C true CN1229882C (en) | 2005-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011100958A Expired - Fee Related CN1229882C (en) | 2000-03-30 | 2001-03-30 | Battery and its manufacturing method |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6599660B2 (en) |
| EP (1) | EP1139462A3 (en) |
| JP (1) | JP3723433B2 (en) |
| KR (1) | KR100573349B1 (en) |
| CN (1) | CN1229882C (en) |
| HK (1) | HK1038987B (en) |
| TW (1) | TW508858B (en) |
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| JP3838872B2 (en) * | 2000-12-13 | 2006-10-25 | 松下電器産業株式会社 | Battery connection structure and connection method |
| EP1331682B1 (en) * | 2002-01-28 | 2012-12-12 | Sanyo Electric Co., Ltd. | Battery pack |
| US20050196665A1 (en) * | 2004-02-23 | 2005-09-08 | Matsushita Electric Industrial Co., Ltd. | Battery, battery pack, method for manufacturing the battery, and method for manufacturing the battery pack |
| JP2006049096A (en) * | 2004-08-04 | 2006-02-16 | Yuasa Corp | Battery pack and its manufacturing method |
| JP4845362B2 (en) * | 2004-09-22 | 2011-12-28 | 三洋電機株式会社 | Assembled battery |
| CN101916838B (en) | 2004-09-29 | 2012-02-01 | 株式会社杰士汤浅国际 | Enclosed battery, enclosed battery-use lead, and assembled battery formed by a plurality of enclosed batteries |
| JP4977951B2 (en) * | 2004-11-30 | 2012-07-18 | 株式会社Ｇｓユアサ | Sealed battery, method of manufacturing the same, and assembled battery composed of a plurality of sealed batteries |
| US7565808B2 (en) * | 2005-01-13 | 2009-07-28 | Greencentaire, Llc | Refrigerator |
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| JPH08171896A (en) | 1994-12-16 | 1996-07-02 | Matsushita Electric Ind Co Ltd | Manufacture of pack battery |
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| JP2961656B1 (en) * | 1998-06-08 | 1999-10-12 | 三桜工業株式会社 | Battery joining equipment |
-
2000
- 2000-09-08 JP JP2000273647A patent/JP3723433B2/en not_active Expired - Fee Related
-
2001
- 2001-03-07 US US09/799,627 patent/US6599660B2/en not_active Expired - Fee Related
- 2001-03-15 TW TW090106050A patent/TW508858B/en not_active IP Right Cessation
- 2001-03-28 EP EP01107700A patent/EP1139462A3/en not_active Withdrawn
- 2001-03-29 KR KR1020010016374A patent/KR100573349B1/en not_active IP Right Cessation
- 2001-03-30 CN CNB011100958A patent/CN1229882C/en not_active Expired - Fee Related
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2002
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|---|---|
| TW508858B (en) | 2002-11-01 |
| JP2001345088A (en) | 2001-12-14 |
| US20010031393A1 (en) | 2001-10-18 |
| HK1038987A1 (en) | 2002-04-04 |
| US6599660B2 (en) | 2003-07-29 |
| EP1139462A2 (en) | 2001-10-04 |
| KR20010095063A (en) | 2001-11-03 |
| KR100573349B1 (en) | 2006-04-25 |
| HK1038987B (en) | 2006-03-17 |
| JP3723433B2 (en) | 2005-12-07 |
| EP1139462A3 (en) | 2006-10-18 |
| CN1315748A (en) | 2001-10-03 |
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